71735823 has 12 divisors (see below), whose sum is σ = 104435968. Its totient is φ = 47446560.

The previous prime is 71735779. The next prime is 71735863. The reversal of 71735823 is 32853717.

71735823 is a `hidden beast` number, since 7 + 1 + 73 + 582 + 3 = 666.

It is not a de Polignac number, because 71735823 - 2⁶ = 71735759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71735863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30238 + ... + 32523.

Almost surely, 2^71735823 is an apocalyptic number.

71735823 is a deficient number, since it is larger than the sum of its proper divisors (32700145).

71735823 is a wasteful number, since it uses less digits than its factorization.

71735823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62894 (or 62891 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 71735823 is about 8469.7002898568. The cubic root of 71735823 is about 415.5073352109.

It can be divided in two parts, 7173 and 5823, that added together give a square (12996 = 114²).

The spelling of 71735823 in words is "seventy-one million, seven hundred thirty-five thousand, eight hundred twenty-three".